Drain pipe for flush tanks



Feb. 5, 1935. F. P. HELLER DRAIN PIPE FOR FLUSH TANKS Filed Jan. 51,1934 Frank]? Heller, summ r (lttorneqa Patented Feb. 5, 1935 5 TATE-TS,PATFENT OFFICE V 1;989;8'5 g V DR'ATN PIPE FOB, FLUSH TANKS iFrankiB.iHeller, Beading, l-Pa.

.Applieation January 31, 1934, Serial No. 7709, 065

F6 Claims. (CURL-57) I {Phisinvention relates toflush'tanksorithe like,indicative of that usually :employed,but it :isprac- :and moreparticularly -:to improved discharge tically universal "to maintain .a-minimum water means adapted to completely drain ,-all the water :levelfa-s set forth, :and the present improvements tram *the tanknotprdinarily discharged by the ;provide -simp1e *and convenient means.to drain Q5 usual-flush control .valve. .this.tank:-held=water whendesirediorrequired-for 5 Flush valves in commoniuseaas well .understood,mepairsor to ,prevent harm iromfreezing. .arerarranged toinormallymaintain avminimum Referring to Figs. 2 (andis,iwhichshow-ionian:levelpf ,water in ;the ta1ik iafterieach .fiush disenlargedscalethedischarge fitting indicated in WhiGh Nm l end-0f the lRD y Fig.1,the-vaLve.seat-:8 isspacedabove the-bettom pipe "is immersed so -as,tosilence the sound of iof the tankhy-a :fitting flange :15 adapted-toseat water rushing'in to refill the tank. Thisretained ion ,said,hottom, and water-tight connection w t r qr n ri st opped up with sp stherewith is secured by =.a usual clamping nut (16 o-r.ragbefore-repairsto the tank can.bemade,;and .jnterpgsed Washer 17 engaging,against th t i h itfil kfig st d e iriomifleeZ-ing underside of :thetank bottom. The draining houses closed .f oriawinter fieasQ conduiti2flifer the water held in theltank below v[ h Pr mVBntlOIl 001111311565rlmpreved :the top edge Of vaIye-seatiS,.isi'herein shown as an means foConveniently emitting Such Ietamed ,integralpart of the fittingbeing-icast within an wa n the :Q P pe when fleeire'di inward bulge 21iormed in the pipe 6,-,and\a bulge n r of eo l v ifii Willibemore fully:22 :on the :fiange :15, the opening .throughthelatdeSeTibedlheTeinef-teT in tenmetionmthltheae' ter communicatingwith-the tank .5 close to the p te i While tnevet'feeltures will.bottom-ofithe latter-sofas to oompletely drain the e r m d ut m h e en'q water therefrom. The lower end of the conduit Shows diagrammaticallym Yertma'l ,20 :isshown ofi-set inner pipe communition a usual flushtank indicating particularly the eating pentign .25 Spaced Mom e portionusual flush outlet "and overflow pipe, and the end by a 26' d d with nOpening 27 of the t Water Supply Inlet plpe mm forming a valve seat fora flow controlling valve low the mlmmum water level remammg after 28.The threaded extension 29 of said valve is each flush dischargeshown asengaging a screw-threaded aperture 30 Figs. 2 and 3 indicate, on anenlarged scale, through the outer wan of the pipe 6 below therespectively, a slde elevation, and a transverse tank and clamping nutThe outer end of 30 cross-sectional elevation, of the flush dischargeValve 28 is Slotted for engagement of a screw fittmg further.sr.lows fdriver and is preferably of such a length as to ferred embodiment of thetank draining conduit normally he in aperture 30 beyond the depth g f fifg s gfigggg and the flow-conof the screw-threads formed on the lowerend of pipe 6. This arrangement, it will be noted, pro- 35 fi f g g lffg ggggg gfg g the vides for outside operation of valve 28 without Figindicates a modified Struture in which interference with clamping nut16, and more parthe ct'mduit is formed Separately from the flushticularly it provides for protecting the threaded discharge fittingextension 29 of valve 28, said threads when the 40 The tit;55 $?0t.ttioiifit fioitt 2 1%;if; plioable to flush tanks for closet bowls, andFig. avoid the c Stalizin effect reduced 1 indicates a tank 5 forhsuizlhpurposeiforflmeld1 with mersed in g i p i of 2 28 fi a bottom apertureinw ic is secure a us control fitting comprising a discharge pipe 6project- 3 2 1 quickly w g' g f i ing through the tank aperture with itslower end '7 150 aljge plpe eavtng e adapted for connection to a bowlextended pipe, begm reparsy or 5a agamst freezmg temperanot shown, andits upper end within the tank g? 4 t formed with a seat 8 for adischarge control valve mdma es modlfica m Whleh the 9. The seat 8 islocated above the bottom of the Valve may e Operated through eValve-Seated bowl purposely to maintain a minimum water eh 0f D 6 afterfillshmg y f e j y 00 level, indicated by dotted line a, which level ishftmg the valve 9 to one Slde, the p rt similar sufficiently high tocover the end of the water to those of Figs. 1 and 2 having the samerefersupply pipe 10 so as to silence the flow in refilling ence numeralsas the latter with the addition of the tank. exponent prime The abovedescribed tank structure is merely Fig. 5 indicates another modificationin which 55 endadapted tothe conduit is formed as a separate unitsecured to the pipe 6 and communicating with the tank through a lateralfitting opening, the parts herein similar to those of Figs. 1 and 2having the same reference figures with the addition of exponent secundusi From the foregoing description it is believed the nature and operationof the improvements will be readily understood. It will also beunderstood that these improvements maybe applied to other liquid tanksnot completely drained by their outlets, and that further modificationsand changes may be devised within the spirit of the invention asdefine-d in the followingclaims. V i

What I claim is:--

1. In combination with a water storage tank having an outlet-engagedrflush-p ipetfitting provided with a discharge-controlled tank-enclosedend adapted to maintain a minimumlevel; of tank-retained water, of avalve-controlled drain- I 'ing conduit for said'tank-retainedwaterformed I integrally the wall of said one end communicatingthroughsaid wall with fitting and having said tank adjacent the bottomof the-latter and outside a said discharge-controlled end, and its otherend communicating interiorly with'said outlet 'pipe belowsaid tank. V V

2. In combination with a water storage; tank having an outlet-engagedflush-pipe fitting provided with a discharge-controlledtank enclosedmaintain a minimum level of tank-retained water, of a drainingconduitfor "said tank-retained water having an inlet endcommunicatingwith saidtank adjacent its bottom wall, and an outletendcommunicating with said outlet pipe below said tank, a valve seat insaid conduit above said outlet end, and, a valve for said seat havingits operating screw-thread extending into said conduit beyond theconduit retained water when said valve is fully seated- 3. Anout letfitting for the bottom aperture of a flush tank or the like,comprising'a'tankenclosed end provided with a discharge controlledopening located above'the'bottom of said tank to 'mediately engaging thebottom wallof conduits integrally formed pipe, one having anjopeningretain a determined minimum level of water in the latter, and avalve-controlled drain conduit inlet opening through said fitting wallinto said tank below said discharge-controlled opening, "and an outletopening within said fitting below the bottom of said tank.

4. An outlet fitting for the bottom aperture of a flush tank or thelike, comprising a tankthe latter, a drain conduit in said fitting forsaid retained water having an inlet opening through saidfitting wallinto said tank below said discharge-controlled openi g, and an outletopening within said fitting below the bottom of said tank, and a controlvalve for said conduit having its operating end extending laterallythrough said fitting wall below said tank.

' 5. An outlet fitting for; the b-e-ttom aperture of a flush tank ortheqlike, comprising 'an outlet pipe extending through, saidaperturejand intersaid tank, a discharge-control valve seat at" theupper end of said pipe 'withinsaid tank, a conduit in the wall of saidpipe having inlet'opening through the wall of the latter intosaid tankbelow said valve seat and an outlet-opening within said pipe below saidtank bottom, and a valve for closing said conduit.

a. An' outlet tang for the bottom meme 6:

a; flush tank or 'the like, comprising an outlet pipe extending through,said aperture and intermediately engaging the bottom wall of saidtank,a discharge-control valve seat at the upper; end of said pipe withinsaid tank, communicating in the wall ofrasaid into the tank below saidpipe valve seat and th'e other having an opening into said pipebelow thetank bottom, and a valve controlli jg communication betweensaidconduits. FRANK HELLEV R.

'in said fitting for said retained water having an

